Introduce frugal mode #272

Job	Run time
🐧 Build SPAdes for Linux	3m 56s
🍎 Build SPAdes for macOS (macos-14, arm64)	2m 46s
🍎 Build SPAdes for macOS (macos-15-intel, x86_64)	6m 34s
🚬 E. coli 1k smoke checks (macos-15-intel, x86_64)	1m 29s
SPAdes unittests (macos-14, arm64)	59s
🚬 E. coli 1k smoke checks (macos-14, arm64)	1m 15s
SPAdes unittests (macos-15-intel, x86_64)	1m 42s
🚬 E. coli 1k smoke checks	1m 12s
SPAdes unittests	56s
🚬 E. coli 1k smoke checks (MPI)	1m 31s
	22m 20s

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